AT&T Galaxy S6 OTA Update G890AUCU5CPI2, Improved Network Density, Messaging, and September Security Patch

AT&T Galaxy S6 Active (SM-G890A) has just receive an OTA update that bumped up its Android 6.0.1  Marshmallow OS to build version G890AUCU5CPI2 from G890AUCU4CPH3. The update hasn't brought out any new features but it addressed several improvements particularly about the device performance in areas with lower network density and enhancements to Messaging services. The update also applied the latest security patch to which now covers the month of September 2016.

Here are the technical details about the update:

The update includes:
  • Improves device performance in areas with lower network density
  • Performance enhancements to Messaging services
  • Android device security updates

Build version:
  • Android version: 6.0.1
  • Android security patch level : September 1, 2016
  • Baseband version: G890AUCU5CPI2
  • Kernel version: 3.1061.8347181dpi@SWDD6920 #1 Fri Sep 9 15:02:35 KST 2016
  • Build number: MMB29K.G890AUCU5CPI2

This Over-The-Air update weighs at approximately 123 MB i file size to download if your Galaxy S6 Active is currently running with the previous build version G890AUCU4CPH3.  So better check the update right now if you owns the AT&T Galaxy S6 Active.

How to Update the Galaxy S6 Active via Over-The-Air (OTA)


This is the usual method on how to check and to perform an update on Galaxy S6 edge  to the latest software version.  This method is what we called Firmware Update  Over-The-Air and so-called as FOTA or simply OTA update. In most often cases, a notification message will be directly sent out to you by your network provider and by Samsung itself, telling you that there is a new update that has now available for download.  This approach requires you to prepare a strong WiFi connection,  and so it might happen sometimes that one did not receive any software update notification messages; (1) If and when the device is out of range during the software update roll out  period, (2) Automatic update has been turned off in the device Settings.
However, We can still manually check for the update instead.

Here’s how to do it manually:
  • From your Galaxy S6 edge Home screen tap on Apps.
  • Select the Settings gear icon.
  • Tap About device.
  • Tap Software update.
  • Tap Check for an update.

It will then notify you that a new update is available for download. But it also says that “Your device software is up to date“, and there is no software update is yet available for grab. You can simply choose Install now if you do so or else Install later if you want to get the update in later time.

But if ever you might have had received this message while checking software update that says something like “The operating system on your device has been modified in an unauthorized way. Try downloading software updates using Smart Switch on your computer or visit a customer service center.”  This is a warning message that only appears for those devices that have been rooted and installed with modified and unofficial firmware.  So to be able to get the Software OTA update again, you must Unroot the Galaxy S6 edge first, and or removed any modification that has been installed in it.

Update the Galaxy S6 Active using Smart Switch for PC


Download Smart Switch for PC

You have to choose the one that is specifically built for computer, depends on what you have either a PC or Mac.  Once you installed Smart Switch, all you need to do is to connect your Samsung Galaxy S6 on your  computer using the supplied USB  cable.
  1. Open Smart Switch in your computer.
  2. Connect the Galaxy S6  into the computer using the supplied USB data cable.
  3. Smart Switch will automatically prompt you if the update is available. Just click on the “update” then the “OK”  button to begin updating your Galaxy S6.

[Than's to Kelly!]